package com.example.project.mapper;

import com.example.project.pojo.Bj;
import com.example.project.pojo.Zong;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

import java.util.List;

@Mapper
@Repository
public interface ZongMapper {

    //查询每个班级的学生信息；
    List<Zong> selectByCid(int cid);
}
